Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763114AbXEWOrU (ORCPT ); Wed, 23 May 2007 10:47:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757227AbXEWOrG (ORCPT ); Wed, 23 May 2007 10:47:06 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:52957 "HELO iolanthe.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1760681AbXEWOrG (ORCPT ); Wed, 23 May 2007 10:47:06 -0400 Date: Wed, 23 May 2007 10:47:04 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: Andrew Morton , "Rafael J. Wysocki" cc: Pavel Machek , USB development list , Oleg Nesterov , Kernel development list Subject: Re: 2.6.22-rc2-mm1 In-Reply-To: <200705231122.30756.rjw@sisk.pl> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1301 Lines: 32 On Wed, 23 May 2007, Rafael J. Wysocki wrote: > On Wednesday, 23 May 2007 09:48, Andrew Morton wrote: > > On Wed, 23 May 2007 00:42:33 -0700 Andrew Morton wrote: > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.22-rc2/2.6.22-rc2-mm1/ > > > > This is intermittently getting resume-from-RAM failures. It is not > > sufficiently repeatable to be able to bisect. > > > > [ 1381.119362] PM: Preparing system for mem sleep > > [ 2331.798452] Stopping tasks ... > > [ 2351.760431] Stopping kernel threads timed out after 20 seconds (2 tasks refusing to freeze): > > [ 2351.762385] ksuspend_usbd > > [ 2351.764374] khubd > > [ 2351.766338] Restarting tasks ... done. > > Hmm, that seems to be related to usb-fix-suspend-to-ram.patch (probably one of > the threads is waiting for a completion by some other thread that has been > frozen already). Is it possible to get an Alt-SysRq-T stack trace during those 20 seconds? Knowing what those threads are waiting for would be a big help. Alan Stern - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/